megrim

megrim \MEE-grim\, noun:

1. A migraine.
2. A fancy; a whim.
3. In the plural: lowness of spirits -- often with 'the'.

That might justify her, fairly enough, in being kept away from meeting now and again by headaches, or undefined megrims.
-- Harold Frederic, The Damnation of Theron Ware

Tonight, by some megrim of the scheduler, I have the honor of working with the departmental chairman, Dr. B.
-- Pamela Grim, Just Here Trying to Save a Few Lives

They do say it's always darkest before the dawn, she thought. I reckon this is proof of it. I've got the megrims, that's all.
-- Stephens Mitchell, Scarlett

Kate had learned a long time ago that the best way to deal with Effie's megrims was to maintain an attitude of determined cheerfulness.
-- Susan Carroll, Midnight Bride

Megrim is from Middle English migrem, from Middle French migraine, modification of Late Latin hemicrania, "pain in one side of the head," from Greek hemikrania, from hemi-, "half" + kranion, "skull."